7720446012 has 12 divisors (see below), whose sum is σ = 18014374056. Its totient is φ = 2573482000.

The previous prime is 7720445987. The next prime is 7720446017. The reversal of 7720446012 is 2106440277.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7720446017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321685239 + ... + 321685262.

It is an arithmetic number, because the mean of its divisors is an integer number (1501197838).

Almost surely, 2^7720446012 is an apocalyptic number.

It is an amenable number.

7720446012 is an abundant number, since it is smaller than the sum of its proper divisors (10293928044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7720446012 is a wasteful number, since it uses less digits than its factorization.

7720446012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643370508 (or 643370506 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 7720446012 is about 87866.0686044391. The cubic root of 7720446012 is about 1976.4270847545.

Adding to 7720446012 its reverse (2106440277), we get a palindrome (9826886289).

The spelling of 7720446012 in words is "seven billion, seven hundred twenty million, four hundred forty-six thousand, twelve".